18446165033 has 2 divisors, whose sum is σ = 18446165034. Its totient is φ = 18446165032.

The previous prime is 18446164999. The next prime is 18446165039. The reversal of 18446165033 is 33056164481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16339997584 + 2106167449 = 127828^2 + 45893^2 .

It is a cyclic number.

It is not a de Polignac number, because 18446165033 - 2⁶ = 18446164969 is a prime.

It is a super-2 number, since 2×18446165033² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18446165039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9223082516 + 9223082517.

It is an arithmetic number, because the mean of its divisors is an integer number (9223082517).

Almost surely, 2^18446165033 is an apocalyptic number.

It is an amenable number.

18446165033 is a deficient number, since it is larger than the sum of its proper divisors (1).

18446165033 is an equidigital number, since it uses as much as digits as its factorization.

18446165033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 18446165033 in words is "eighteen billion, four hundred forty-six million, one hundred sixty-five thousand, thirty-three".